DJI and Associates, Inc.
Engineering, Design and Drafting Services

Company Overview

DJI & Associates, Inc. (DJI), a Michigan Corporation headquartered in Jackson, Michigan, was established in 1998 by former employees of ZEI, Inc.  DJI, is a multidisciplinary technical organization, providing engineering and design services to the natural gas, electric, manufacturing and petroleum industries.  DJI’s staff possesses over 25 years of experience, and is disciplined in addressing client needs in an expedient and cost-effective manner.

James M. Iocca, P.E., Ph.D., founder of ZEI, Inc., was involved in the original design of several compressor stations for TransCanada (ANR Pipeline Company); namely the Woolfolk Compressor Station located in Big Rapids, Michigan and the Defiance Compressor Station located in Defiance, Ohio.  Dr. Iocca was also involved in the design of the White Pigeon Compressor Station, which was the first automated compressor station, for Consumers Energy.  Dr. Iocca was also instrumental in the design of several large natural gas projects in Western Europe and the United Kingdom, including the Ommen Compressor Facility in The Netherlands, which is the largest in the world.


DJI staff members have been responsible for projects involving natural gas facilities (compressor stations, meter stations, main line valve sites, etc.), natural gas-fired power generation, and special projects including acoustics and vibrations.  Additionally, staff members have experience in the energy field, including projects involving power generation, gas transmission, storage and distribution.  These projects included consulting engineering, design, cost estimating, procurement and construction management.

DJI has continuously broadened its technical support services in keeping with the increasingly complex needs of its utility, industrial and energy resource clients, and offers capabilities in process, civil, structural, mechanical, electrical, instrumentation and controls, and automation systems along with project management, procurement, inspection, field as-builts, construction management and start-up services.  Since its inception, DJI has been in engaged in a variety of projects throughout the United States.

While being small enough to provide customers with personal and individualized attention, DJI also offers the experience and capabilities of major engineering firms in the industry.  DJI’s staff will be here years from now offering the same quality service and utilizing the expertise that many have relied upon.  DJI is committed to providing each client with quality engineering services, within the defined scope and in a cost-effective manner.